High precision pressure transmitter

A high-precision pressure transmitter is an instrument that converts pressure variables into standardized output signals that can be transmitted. Its working principle is based on pressure sensor technology. When the pressure of the measured medium acts on the sensor, the sensor will generate a corresponding electrical signal output. After amplification, filtering, and linearization processing, the signal is converted into a standard voltage or current signal (such as 4-20mA DC) for display, recording, control, or transmission. It is usually composed of pressure sensors, measurement circuits, signal processing circuits, output circuits, and explosion-proof enclosures.

A high-precision pressure transmitter is an instrument that converts pressure variables into standardized output signals that can be transmitted. Its working principle is based on pressure sensor technology. When the pressure of the measured medium acts on the sensor, the sensor will generate a corresponding electrical signal output. After amplification, filtering, and linearization processing, the signal is converted into a standard voltage or current signal (such as 4-20mA DC) for display, recording, control, or transmission. It is usually composed of pressure sensors, measurement circuits, signal processing circuits, output circuits, and explosion-proof enclosures. Its characteristics mainly include:

High precision: using sensor technology and signal processing algorithms to ensure the accuracy of measurement results.

High stability: The design is reasonable and can maintain long-term stability under harsh working conditions.

Wide range ratio: The range ratio is superior to traditional pressure transmitters and is suitable for a wider measurement range.

Multiple output signal options: Different types of output signals can be selected according to actual needs, such as voltage signals, current signals, etc.

Explosion proof performance: Some high-precision pressure transmitters have explosion-proof performance and are suitable for hazardous environments.

The main performance indicators of high-precision pressure transmitters include:

Accuracy: Usually expressed as a percentage of Full Scale (FS), such as ± 0.1% FS. Accuracy is an important indicator for measuring the deviation between the measurement results of a transmitter and the true value.

Range: The range between the maximum and minimum pressure values that a transmitter can measure. The range selection should be determined according to actual needs.

Stability: The stability of the transmitter output signal during long-term use. A transmitter with good stability can maintain long-term accurate measurement results.

Response time: The response time of the transmitter to pressure changes. The shorter the response time, the stronger the transmitter's ability to respond to rapidly changing pressure signals.

Selection and installation of high-precision pressure transmitters:

Selection: When selecting, it is necessary to determine parameters such as measurement range, accuracy level, output signal type, and explosion-proof level based on actual measurement requirements. At the same time, it is also necessary to consider the properties of the tested medium (such as corrosiveness, temperature, etc.) and the requirements of the working environment (such as humidity, pressure, etc.). For application scenarios that require high precision, transmitters with higher precision levels should be selected.

Installation: During installation, ensure that the high-precision pressure transmitter is securely fixed to avoid being affected by mechanical shock and vibration. At the same time, it is necessary to follow the manufacturer's instructions for wiring and debugging to ensure the accuracy of the measurement results. During installation, attention should also be paid to protecting the sensor from corrosive media and ensuring the integrity of the explosion-proof enclosure (if applicable).

Widely used in various fields such as aerospace, automotive manufacturing, medical equipment, industrial process control, and research and development. Its high precision, stability, and reliability play a key role in aircraft engines, automotive component manufacturing, medical equipment, industrial process control, and scientific data collection, ensuring safety, quality, and data accuracy.

To ensure its long-term stable operation and accuracy, it is necessary to regularly maintain and upkeep it

Regular inspection: Check whether the appearance of the instrument is intact, whether the wiring is loose, and whether the sensor is damaged.

Cleaning and maintenance: Regularly clean the surface and internal components of the instrument panel to remove accumulated dust and dirt on the surface. For components that come into contact with the medium, appropriate cleaning agents should be used for cleaning and ensure that they are dry before installation.

Calibration and adjustment: During long-term use, the accuracy of high-precision pressure transmitters may change due to factors such as sensor aging and environmental changes. Therefore, it is necessary to regularly calibrate and adjust the instruments to ensure the accuracy of their measurement results. Calibration usually requires the use of standard calibration equipment and operation according to the calibration procedures provided by the manufacturer.